Operating instructions

Table 5-9. Troubleshooting, Signal-Generator Mod e
;
TROUBLE CHECK
NORMAL
INDICATION
REFER TO
CAL./CW operative as verified in
20-dB fixed att enuator .
20-dB fixed attenuator.
Table 5-4, but no output.
Coaxial re lay CH- K1.
(Listen for re lay opera-
tion while swit ching
Figure 5-2 .
.-
funct ion swit ch to dif-
ferent positi ons .)
Harmon ic am plifier
output at SIG:\AL
GENERATOR OUTPUT
connector.
Signal Gen er ator Mixer;
local oscillat or signal
from coaxi al relay
CH-Kl.
10-MHz sign al from
attenuator. (Defective
function swit ch , att en-
uator, or wir ing.)
Or ange/ wh ite wire,
(-12V bias diode CRl).
LEVEL SET pote n tio -
meter or Wiring.
Greater than
700 MV.
Greater than
700 MV at
CH-A3-J1.
200 MVat
CH-A3-J2 .
-12V with
LEVEL SET
c
ontrol set to
zero.
Front panel of CE-7 .
Figure 5-2.
Front Panel Wiring
diagram (Figure 6-11).
Signal Generator Mixer
(Figure 6-8) .
No
modulation,
No indi cation on
FM MOD. I
KT,-EXT. Set to INT. Front panel of CE-7.
Model 302 FM Deviation Meter,
1 kHz OUT SWitch.
1 kHz gene ra- or .
(1 kHz OUT c
onnector
with HI MOD. INT .-
EXT. 1 kHz O l'T switch
in
INT. positi on.)
10-MH z FM Gener at or.
Set FM MOD. I:\T,-
EXT. switch to EXT.
with external so ur ce
of 1 kHz at 1. OV fed
to EXT. connector .
Model 302
H I
Deviati on Met er.
posit ion.
Greater than
l.OV at FP-J2.
Control of
deviation with
DEV,
ADJ.
control.
Front panel of CE-7.
Multi-Oscillator board
0103 (Figure 6-5).
Applicable instruction
manual.
[e'
[~
[
[
[
[
5- 16
5601"0015"1
..